| <!DOCTYPE html> |
| <html> |
| <body> |
| <p>Tests that the parameters to document.elementFromPoint() are mandatory and of type double.</p> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| test(function() { |
| assert_throws(new TypeError(), function() { |
| document.elementFromPoint(); |
| }, "Called with no parameter"); |
| |
| assert_throws(new TypeError(), function() { |
| document.elementFromPoint(0); |
| }, "Called with 1 parameter"); |
| }, "Parameters are mandatory."); |
| |
| test(function() { |
| assert_throws(new TypeError(), function() { |
| document.elementFromPoint(0, Infinity); |
| }, "Passing Infinity as second parameter throws"); |
| assert_throws(new TypeError(), function() { |
| document.elementFromPoint(Infinity, 0); |
| }, "Passing Infinity as first parameter throws"); |
| assert_throws(new TypeError(), function() { |
| document.elementFromPoint(0, NaN); |
| }, "Passing NaN as second parameter throws"); |
| assert_throws(new TypeError(), function() { |
| document.elementFromPoint(NaN, 0); |
| }, "Passing NaN as first parameter throws"); |
| }, "Parameter should be finite floating point values."); |
| </script> |
| </body> |
| </html> |
